If a war turns hot won't ballistic missiles (can be non nuclear) be used upon military shipyards? In WW2 factories and shipyards were bombed. So likely those with long range BM will use them upon shipyards and weapons factories. Thanks to those BM, once the war begins there won't be mass production like there was in WW2. Everything is always in bombing range.
For the most part, everyone will only have what they start with.
But a war with ballistic missile is unlikely , china will do it ,only in case it see us extremely weak , if china senses any possible loss they not gonna fught a full scale war .
And if they go in full battle mode , what would stop us from giving them as much damage as we can ,and what will stop it's neighborhood to take advantage of opportunity and hit them in their home , US won't leave a golden chance to royally fuck china .
And mass production is never a possibility un modern times , ww was a different time , production now is much more complicated and expensive , also at that time all major economy were fighting , no major economy would like to go in a Savage war